TM9100 Service Manual Introduction 21
© Tait Electronics Limited August 2005
Table 1.2 Typical current consumptions by radio while not transmitting (analog mode) and by
control head
Parameter Value
Radio not operating:
• radio off (no links fitted)
• radio off (links LK1, LK2, LK3 fitted)
(using ignition control to switch radio on and off)
• radio on stand-by (links LK1, LK2, LK3 fitted)
(using
ON/OFF key on control head to switch radio on and off)
2.2mA
3.3mA
52mA
Receiver:
• receiver idle (not scanning)
• receiver active, mute on
• receiver active, 3W audio into 16Ω
• receiver active, 10W audio into 4Ω
104mA
158mA
585mA
1.6A
Current consumptions by control head only:
• no back-lighting, no LEDs
• maximum back-lighting, no LEDs
• maximum back-lighting and LEDs on
• additional current with LCD heating on
13.3mA
99.9mA
102mA
220mA
Table 1.3 Typical current consumptions by radio body while transmitting (analog mode)
Parameter
Values at different power levels
Very low Low Medium High
40W/50W radio:
• B1 band
• H5 band
• H7 band
4.0A
3.6A
3.5A
4.8A
4.4A
4.3A
6.0A
5.1A
5.0A
9.0A
7.6A
7.6A
25W radio:
• B1 band
• H5 band
• H6 band
1.1A
1.2
1.2A
2.0A
2.3A
2.3A
2.9A
3.3A
3.4A
4.4A
5.1A
5.2A